Trout

Trout in its fresh form is a good low-histamine option, though it's worth knowing that it's commonly sold smoked, which changes the picture entirely.

• Fresh vs. smoked — fresh or frozen trout is generally well-tolerated, while smoked trout undergoes a curing process that allows histamine to accumulate substantially

• Rainbow trout is widely available fresh — it's a practical everyday option that tends to be consistently low in histamine when bought fresh or frozen from a reliable source

Double-checking the label to confirm you're picking up fresh or plain frozen trout rather than a smoked product is worth the extra second.